Home / 1,480,642,003.80-2,043,286,158.78-820,634,892.12

Finding the Fourth Proportional to 1,480,642,003.80, 2,043,286,158.78 and 820,634,892.12

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Solution

The fourth proportional to 1,480,642,003.80, 2,043,286,158.78 and 820,634,892.12 is: 1,132,476,258.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,480,642,003.80 : 2,043,286,158.78 = 820,634,892.12 : x
  2. Step 2: Convert to fraction form
    1,480,642,003.80/2,043,286,158.78 = 820,634,892.12/x
  3. Step 3: Cross multiply
    1,480,642,003.80x = 2,043,286,158.78 × 820,634,892.12
  4. Step 4: Simplify right side
    1,480,642,003.80x = 1,676,791,916,480,714,496
  5. Step 5: Solve for x
    x = 1,676,791,916,480,714,496/1,480,642,003.80
  6. Step 6: Final answer
    x = 1,132,476,258.39

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.